Locking-ring for glazings.



W. H. WHITE.

LOCKING RINQJAFOR GLAZINGS.

Patented June 22; 1915; l

WALTER H.

WHI'LE, 0F KENOSHA, WISCONSIN, ASSIGN'OR TO THE BADGEM VEG,

CQ.1 OF KENOSHA, WISCONSIN, A CRPORATION 017' .SCGNS LGCKlNG-RNG FOR GLAZlNGS.

pplication flied December Si T0 all whom it mag; concern,

Be it known that l, WALTER HrziiLTiNii Wurm, a citizen of the UnitedStates, residing at Kenosha, iii the county of Kenosh. ainl State otlVisconsiii7 ha re invented cer tain new and useful lniproveinents 'inLock ingings for (llazings7 of which the JfollowY ing is aspecification.

This invention relates to iinproif'enients in locking rings forglazings, and is particu` larly well litteil for einhoiliinent inlai'nps such as are usc-il on automobiles or other ve hicles.

ln head-lamps such as are used upon autoniohiles or similar vehicles,the glazing o' the lanip is usually circular in shape, and in its usualsituation at the front ol the lainp it constitutes a panel closure forthe interior ot the lamp, which subject to a great (le-il of mechanicalahuse and is also much posed to ilirt anil the action ot the elements Itis.tlius necessary to provide an extremely sul'istantial and ruggedconstruction which will prevent access ot' (lust and inoistnrf.; to theinterior of the lanip while at the same tinie the construction useilmust permit of the ready replaei-nient ot a broken glazing with a newone vilicnevcr tho occasion arises. Since, howeve in nearly all casesthe glux iiiiigs have Leeoine lni'ilien hy slight accidents when thevehicle is ont ot toucn with the factory in which the lanip wasoriginally niaole, it is usually necessary to procure new glut/,ings'from sonic local repair establishment which either carries a supply ofvari` ons iliaineters or else equipped to cut out glass disks froin thelsheet. These substitute glazings having` heen eut out of glasstlillereiit from the glass which was used to construct the originalglazinff, frequently vary widely in thickness, and the result is thatsometimes they are too thick to enter the traine of the lamp, or', onthe other hand they may he so loose as to permit the glazing to rattleand allow dust and rain to enter the lamp. This latter defect wasformerly not. of such greatl consequence, but at the present time, whenelectric heail lamps are almost universally employed on automobiles, therctlectors of these lainps are constructed of highly polished siilverplated brass or similar material which rapiillv becomes tarnished andloses its relleoting power if clamp air or dust gains access to thereflector.

Specification of Letters Patent.

Pat-unical. .i

, 194. Serial N o. 895.231.

Among this 11 invention arefr to' which practically :iii nl nir' at alltiincs when .iseil with glow.' ons thicknesses; to provide :i von whicha lirolien glazing may he i placed with :i new one .iitl'ioui, thspecial tools; to providey a const which the glazing is porri-fully l'`its position in the troni.' nl' thi. i i such a manner as mil-atv tu ol'rattlingr when the lamp is severe vibration: to provi/ls in which are o*,pini i i rials liable lo ileiriioz'aiion il tion ol" the elen'ients: topro tion in which the materia pahle of giving oil' in l thc pe'ilislnftlsin liar/1 oli vide a consirinxtion uhirli the locking ri iriin aroinnltini gli; a, constrinfiion wlii i extremely cheaply aiui awfuiaigeneral`r to provide -i eonsti'fz-i ci i :in

For the purpose of .illusiial' yer in, l haw shown in thi: ai j ings, asan exaiiiplc of il' autoinollule heaillanip 'wl-i principles relerreilto.

ln these drawings Figure l is 'in infini section of the lanip; Fig, :iis a lyr-alli." en

r in r nal iliii w largeil fragmentary detail iiew of the lower poi-tionol Fig. il :nul Fig'. section talien on the line r ln theparticularlayup illust/mieli "in thiA drawings, G represents llie outerhowl or shell of the lan'ip` within i'iicli is nested the reflector 7.

As seen more clearly in Fig'` shell 7 and tho outer shell (S arei'ii'inetl with integral hcai'l--lilii .l;.i jl,z unil 2&7 which meettfiigrther at the Vouter cnil nl the lamp, the lieail 9 beingI formellwith :i projecting lip with the edge the reliector.

The portion. li of thc inner reilrctor :incl the curved part 1Q olf' theouter shell toY an #nl argini of the circular portion ll of getherconstitute 'an annular triiii` circular in naissent 3. the inner orflange l() which inlernests 10o at the same time making the lamp neatand ornamental in its general appearinicc.

The bead-lilre flanges 8 and 9 are ield togcthier by a conlining ringl13 @shaped in section to en'ibrace both iianges.

'iii-s iainp is equipped with the usual elo@ tiieali, operated huil il,which is seated in suchet secured to the inner end ot the parabolicreflector 7. Desoribing the,

giazing and lo lung; means therefor., which constitute. the iniiiortanti'euturc of my in,- i'cntion, it will be seen that the inner Curva tureof the end of the rciiector shell if is prt sed out 0r spun to forni aradially projerting flange or seat 1G, whieli ui'oi'erahly forms aright-angle with an integral ennining flange 17. The outer part oi" thisshell 7 inunediately adjacent the contining flanges 17, is tlaredoutwardly, as shown at 18, in order to facilitate the formation of therecessed lochinguing-seat 19. 'This incitingL ring-seat i9 just referredto is shaped in the arc of circle, the center of which is pret'A erahlywithin the space between the shell 7 and the loe-king ring. lBetween theglazing 2O and the seat i6 I preferably insert an annular paper gasket2i which Initigates the harshness of the Contact between the glazing andits metallic seat, whiie at the same time it. not apt to deteriorate. orgive oil' any noxious gases which might be liabio to tarnish thepolished surface et the reiector. The glazing 'itself is tightly forcedinto engagement with its seat by means of the annular locking ring 22,which the essence ot' my invention and will now be described. Thislocking ring 252, as shown in Fig. 2, is constructed from an annularpiece of resilient sheet metal which is pressed or spun into across-sectional shapeu the cuter portion 23 of which is adapted to titand coperatie with tho arc-like seat i9, and the inner portion 24 ofwhiih considerably iiattcr in curvature and ohliqueiy engages the outerface of the glazing 20.

The original unllexed shape of the. ring; is

such that the end presses tightly against the glazing 20, although thedranings show the latter to he of a minimum practical. thickness. Vhen acomparatively thick glazing is used., the outer face of which wouldoceupysucii a position as shown by the dotted line in the locking ring22 will then tend to flex or roll in its 19, as indicated by the dottedlines 26 and 27, and the extra thickness of glass will thus bcaccommodated without diilieulty. In order to lock the ring Q2 in itsposition and to permit ot its bulb is to be ropl: shown at ZB in l"i rremoval when a glazing or l sever it radially. as Hr and lurking the`ioint 'with a ei .,i- :ruiner 95 Conlormed to the shape ol' the nde oithe ring and secured in pieni; liu' nicans of a locking screw 30 whichenters a nut. 3i

cured to the inside of the oblique flange i8, The adjacent ends o'f thelocking ring, when the latter is in position. are separated a sullicientdistance to permit the ring to be reduced in diameter suilieiently sothat-it may he sprung out ot its seat. The outv-:rirdly exposed surfaceof the ring is preferably nicliehplated and thus terms a handsomeornamental iinishing trini around the glazing opening. which harmonizespar ticolarljv well with the outer glazing.

When making the application ot my in rention. it should he noted thatthe inner portion 2i ot' the lurking ring or necessity closer to theaxis of the lamp than is the line 3:2 where the seat 'i9 inrets theouter swell 1i, and, preferably, the inner edge of' the locking ringwhere it hears xinst the glazing. is of considerably less diameter thansaid iine 32 so that the cross section olt the ring. to a certainextent, is enabled to operate as a more or less rrsiient lei'ez'fulcrulned in the vicinity or' said line Although I have shown anddescribed herein what I consider to be a preferred bodiment of myAinvention applied to the particular lamp illustrated, it should heunderstood that the invention not limited to the details of constructionor configuration of parts described, except as specified in the appendedclaims.

1. in a glazing mounting, the comhina tion of o cireurntorentialinclosing structure provided with an inner. glazing seat and an outercircumferential scat, a glazing located between said seats, and a.locking ring interposed between said outer seat and said glazing andadapted to force the giazing into engagement with said seat, saidlocking ring being ft'lrn'ied of resilifnt material and. having; itsinner edge. which engagesl the glazing. of a substantially lessiliameter than the portion of said ring in engagementlwitb .said outerseat.

VIn a lamp, the combination of an inclosing structure having a pair ofcircular, axially spacedapart opposed circiunferential seats, a glazingrmounted on one of said seats, and a. resilient sheet metal looking ringinterposed between said glazing and the other seat, said ring beingrelatively wide in its cross-section compared with the thickness ofmetal, and engaging one of said opposed parts on a diameter substautially less than the diameter of its engage nient; with the other otsaid parts whereby said ring is capable ol being compressed axiallybetween said glazing; and said soc ond seat.

f5. ln a. lamp, the comhinationv of an aunular supporting: structureprovided with an inner and an outer annular seat., a ,giaw ing supportedon said inner seat, and a sheet metal annular axially compressiblelocking ring interposed between said outer and said glazing.

At. In a laxiip, the combination of an annular inclosing structureprovided with an inner outwardly facing glazing seat and an outerrecessed inwardly facing locking ring seat, said seats being spacedapart along the Mis of the lamp, a glazing supported upon sind inner.'seat, a non-c0ntinuous sheet metal locking ring interposed between theouter seat and the glazing, said locking ring being exinlly leXible andadapted to form an annular finishing trim around the outer eX- posedsurigaee ofi the glazing, and means for locking tlg), ends of said ringin position.

In a parabolic headlamp, the cornbinw tion of a glazing provided with anannular h ling seat and a recessed outwardiy prolocking ring spaeedalong the `l'A the lamp in front and outside of the Y ,ingseanaripillarglazing supported on said glazing seat and, interposed Abetween notl'iof said seats, a non-continuous locking ring pressed out ofcornparativeifvv i-lrin ren silient sl'ieet metal and having an outerodge of comparatively large diameter adapted to engage the outerrecessed seat, and provided with an inwardly projecting edge or lipadapted to engage the glazing on a circle less in diameter than thesmallest di arneter of said outer seat, and means for locking the endsof said ring in position.

6. In a parabolic head-lamp, the combination of a glazing provided withan annular glazing seat and a recessed outwardly projecting locking ringseat spaced along the axis of the lamp in front and outside of theglazing seat, a circular glazing snpportcd on said glazing seat andinterposed between both f said seats, a non-continuous locking ringpressed out of comparatively thin resilient sheet metal and having anouter curved edge of comparatively large diameter adapted to engage theouter recessed seat and provided with an inwardly projecting edge 0r lipadapted t0 ferm an ornamental trim around the glazing, and means forlooking the ends of said ring in position.

WALTER H. WHITE. Vitnesses:

H. (l HAGMANN, C. E. CRAWFORD.

